[Ips-geo-warning] ASWFC GEOMAGNETIC WARNING issued 1204 UT on 10 Nov 2025 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC GEOMAGNETIC DISTURBANCE WARNING 25/90
ISSUED AT 1203UT/10 NOVEMBER 2025
BY THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE.

A CME was launched from the Sun on 9-Nov and is expected to arrive 
from 1700 UT on 11-Nov +/- 10 hours. A second CME was launched 
from the Sun on 10-Nov and is expected to arrive from 0230 UT 
on 12-Nov +/- 10 hours. The first CME is forecast to induce G3 
geomagnetic conditions with a chance of G4. The second CME is 
expected to induce G4 geomagnetic conditions. Should these CMEs 
arrive within close proximity to one another, there is a chance 
for G5 geomagnetic conditions on 12-Nov.

INCREASED GEOMAGNETIC ACTIVITY EXPECTED 
DUE TO CORONAL MASS EJECTION
FROM 11-13 NOVEMBER 2025
_____________________________________________________________

GEOMAGNETIC ACTIVITY FORECAST
11 Nov:  G3, chance G4
12 Nov:  G4, chance G5
13 Nov:  G1-G2, chance G3

Australian Space Weather Forecasting Centre
Bureau of Meteorology
ASWFC at bom.gov.au
www.bom.gov.au | www.sws.bom.gov.au